I too think the final paragraph could benefit from editing, and here's my take based on Jerome's and yours:

Even supposing Gazprom might, at some point in the future, be unwilling or unable to fulfill contracted deliveries of gas to Europe, don't we hold an appropriate preventive measure in our own hands by restricting our demand for gas? Instead, we make increasingly complex and costly efforts to secure an ever growing supply, as if we considered it our right to have plentiful and cheap oil&gas at our disposal. It's time to accept geological and political reality: we have no such right. Opinion-shaping headlines like yours, blaming our problems on unfriendly or unpopular foreign governments, are an imprudent and irresponsible distraction from our real challenges.